Ответ:
хє∅
Объяснение:
(4-y)-y(y+1)=-9
4-y-y²-y=-9
-y²-2y=-9-4
-y²-2y=-13. |÷(-1)
y²+2y+13=0
D=-48
xє ∅
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
хє∅
Объяснение:
(4-y)-y(y+1)=-9
4-y-y²-y=-9
-y²-2y=-9-4
-y²-2y=-13. |÷(-1)
y²+2y+13=0
D=-48
xє ∅